Not just a toy anymore! Now you can swivel off the pounds while having a great low-impact aerobic workout that is fun for all age groups. A great family fitness activity that parents can do with their children. Specifically designed with an interactive voice system that reports your time and progress while displaying calories burned. Helps improve posture and tones several muscle groups including oblique muscles, hip flexors, and glutes. The Fitness Hoop meets CE safety approval, impact-proof, and drop-test requirements. Requires two AAA batteries, not included.